Compare and contrast static, sliding, and rolling friction.

Answers

Answer 1

Answer: Static friction - the friction that occurs when a force is being applied on a still object.

Sliding friction - the friction that occurs upon a moving object; it is always lower than the static friction of the same object.

Rolling friction - the friction on a rolling object; it is actually a form of static friction with the contact point of the wheel with the surface.

Related Questions

Voltage difference causes charge to flow from?
The net force of an object moving with constant speed in a circular motion is in which direction
If an object is accelerating to the right , then net force on the object must be directed towards the right ! True Or False ?
Linh builds a circuit from the diagram shown. A rectangular box of lines with the long side vertical and an extra horizontal line about 2 thirds of the way up. The top line has a circle with an X in it labeled 1. The right side from top has a top circle 2 with an X in it then the connection with the extra line then a bottom circle 4 with an X in it. The extra line has a circle 3 with an X in it. The left side has a stack of horizontal lines near its bottom, which are, from top very short, short, very short, short. If Linh removes bulb 3, which bulbs will remain lit? 1 only1 and 2 only 4 only 1, 2, and 4
Air is a good conductor of heat.. True Or False!!

Find the equivalent resistance in the circuit between A and B

Answers

Answer:

6Ω

Explanation:

The 6Ω resistor and the 3Ω resistor are in parallel.

R = 1 / (1/6 + 1/3)

R = 1 / (1/6 + 2/6)

R = 1 / (3/6)

R = 6/3

R = 2

The 8Ω resistor and the other 8Ω resistor are also in parallel.

R = 1 / (1/8 + 1/8)

R = 1 / (2/8)

R = 8/2

R = 4

This 4Ω resistance is in series with the 4Ω resistor.

R = 4 + 4

R = 8

The 2Ω resistor and the 6Ω resistor are also in series.

R = 2 + 6

R = 8

These two 8Ω resistances are in parallel.

R = 1 / (1/8 + 1/8)

R = 1 / (2/8)

R = 8/2

R = 4

Finally, this 4Ω resistance is in series with the 2Ω resistance we found earlier.

R = 4 + 2

R = 6

The total equivalent resistance is 6Ω.

A soccer ball is kicked horizontally off a bridge with a height of 36 m. The ball travels 25 m horizontally before it hits the pavement below. What was the soccer ball’s speed when it was first kicked

Answers

Answer:

9.23 m/s

Explanation:

Let, the initial velocity be ux.

The horizontal velocity remans the same. So, time required, t = 25/ux

For vertical component, we know,

h = uy*t + (1/2)*g*t^2 [ g is positive because ball is falling downward ]

Putting in the values, we get,

36 = 0*(25/ux) + 1/2 * 9.81 * (25/u)^2

36 = 3065.625/u^2

u^2 = 85.15625

u = 9.23

[ If there's a problem with the solution, please inform me ]

F has _valence electrons.
02
OOO
9
19

Answers

As far as I know it's 7

How do you separate the mixture of rocks and sand

Answers

you shift out the sand

by sifting it so they can be seperate

The mass of a football player who weighs 1250N

Answers

Ah hah ! That depends on where he weighs 1250N, because
weight depends not only on mass but also on the local gravity.
So the same mass can have different weights in different places,
and the same weight can indicate different mass in different places.

Weight = (mass) x (acceleration of gravity) .

Note: 1250N is almost exactly 281 pounds.

-- If he weighs 1250N on Mars, then his mass is 336.8 kg.

-- If he weighs 1250N on Earth, then his mass is 127.5 kg.

-- If he weighs 1250N on the Moon, then his mass is 770.2 kg.

What is constant in all electromagnetic waves?

Answers

their speed, which is the speed of light

Other Questions

Because the moon rotates once for each revolution around Earth,a. you see some phases more than others. b. a different side of the moon faces Earth each day.c. you never see the far side of the moon from Earth.d. the far side of the moon is visible only during the full moon phase.

A driver drives 3 blocks North, 3 blocks east and 3 blocks south. What is the total displacement?

If a man has a made of 83 kilograms on earth, what will the force of gravity on his body on the moon

which phenomenon is most directly responsible for earth’s magnetic field? Earth spinning on its axis. The moon's gravitational pull on earth? Earth's revolution around the sun? The moon's revolution around earth?